We analyzed body lice collected from persons experiencing homelessness in Winnipeg, Manitoba, Canada, during 2020-2021 to confirm vector species and ecotype and to identify louseborne pathogens. Of 556 lice analyzed from 7 persons, 17 louse pools (218 lice) from 1 person were positive for the louseborne bacterium Bartonella quintana.
Keywords: Bartonella; Canada; Pediculus humanus humanus; bacteria; body louse; ectoparasitosis; homelessness; lice; parasites; pediculosis; trench fever; vector-borne infections.